Patent US2903257A successfully refreshed from Google Patents.
US2903257A
Expired / Lapsed
US
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Simultaneous control mechanism for shutter forming laths
Assignee: Individual
•
Filing: 1955-05-03
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Granted: 1959-09-08
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Expires: 1975-05-03
Abstract
No abstract record available.
Inventors
- 👤 Ruben O Perrone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:49
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US301453A
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US1335929A
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US2137426A
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US2168347A
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US2164814A
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US2199562A
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US2257056A
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US2551590A
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US2617156A
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US2667950A
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US2758345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |